83 lines
2.9 KiB
JavaScript
83 lines
2.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.RekorWitness = exports.DEFAULT_REKOR_URL = void 0;
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/*
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Copyright 2023 The Sigstore Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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const util_1 = require("../../util");
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const client_1 = require("./client");
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const entry_1 = require("./entry");
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exports.DEFAULT_REKOR_URL = 'https://rekor.sigstore.dev';
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class RekorWitness {
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constructor(options) {
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this.entryType = options.entryType;
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this.tlog = new client_1.TLogClient({
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...options,
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rekorBaseURL: options.rekorBaseURL || /* istanbul ignore next */ exports.DEFAULT_REKOR_URL,
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});
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}
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async testify(content, publicKey) {
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const proposedEntry = (0, entry_1.toProposedEntry)(content, publicKey, this.entryType);
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const entry = await this.tlog.createEntry(proposedEntry);
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return toTransparencyLogEntry(entry);
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}
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}
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exports.RekorWitness = RekorWitness;
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function toTransparencyLogEntry(entry) {
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const logID = Buffer.from(entry.logID, 'hex');
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// Parse entry body so we can extract the kind and version.
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const bodyJSON = util_1.encoding.base64Decode(entry.body);
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const entryBody = JSON.parse(bodyJSON);
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const promise = entry?.verification?.signedEntryTimestamp
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? inclusionPromise(entry.verification.signedEntryTimestamp)
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: undefined;
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const proof = entry?.verification?.inclusionProof
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? inclusionProof(entry.verification.inclusionProof)
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: undefined;
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const tlogEntry = {
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logIndex: entry.logIndex.toString(),
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logId: {
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keyId: logID,
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},
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integratedTime: entry.integratedTime.toString(),
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kindVersion: {
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kind: entryBody.kind,
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version: entryBody.apiVersion,
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},
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inclusionPromise: promise,
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inclusionProof: proof,
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canonicalizedBody: Buffer.from(entry.body, 'base64'),
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};
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return {
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tlogEntries: [tlogEntry],
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};
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}
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function inclusionPromise(promise) {
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return {
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signedEntryTimestamp: Buffer.from(promise, 'base64'),
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};
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}
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function inclusionProof(proof) {
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return {
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logIndex: proof.logIndex.toString(),
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treeSize: proof.treeSize.toString(),
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rootHash: Buffer.from(proof.rootHash, 'hex'),
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hashes: proof.hashes.map((h) => Buffer.from(h, 'hex')),
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checkpoint: {
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envelope: proof.checkpoint,
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},
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};
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}
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